Type-writing machine.



PATEiqTBn JULY 23, 1907.

A. W. SMITH. 7 TYPE WRITING MACHINE. APPLICATION I'll-LED OU'LE, 1905.

2 sums-SHEET 1.

IWITQE'QEES;

INVENTUR; 1

HIE-1H TTDRNEY wasfioiten effected withouttheepplntor ,ebseri'ing it nnd.the:n1o, r -Wil$ opt tehei l inutl: Indoyiccswhich I -t a c lntc hiugeng tge;

' ,ueeessaryjteghnvpne Yorknnd Sm te-of Newiliorlt hove invented certainUNI-TED'.S1A'1-ES TYPE-vmrrinem g -;i 1

" 5 I Applicationfiled owns.

Tool 'ulllmn'itongig/ emwcm: I Be it; known; thzltl, A rmen. W. Snrrn,a. citizen of the.,Uni t-ed- States, nnrl av residentiyn the borough ofMenhnttann=city of 'New Y k in .the ceuntyoi New new-.-n.n cl usefulImprovements in 'lypc-Wfiting Mnchines, oiivhich the following iszispeoificntion.

. My invention relates to typengriting machines and. more par'ticplnrlyto fractional l ne spacing mechanism therefor. I I .v 1

Jlcretplore great difficulty has been r.-.neountere. l"in providingeflieient frzt cti onnl line spacing mechanism.

Itn ust be understood; in order to appreciate some of these(litiicultie'ggpl nt :nicead-justment is required hetwceni-hc, line.gpncing ,\\']1 e el. and platen-end that there must. l c nbsointelynonmcidefital relative (lisplncement ol- ,the ports from this adjustmentwhen once effected,- ,as ;a -.1 ;l\op nnc 1th. of'onin chIrlisplncementof ehmpcter entpt :1 .line oi writing;is quiteperceptible in the. .printegl,- mutter, -'l n., devices 'where differential genringn as en iple",ed;,hetwecn the line spacing wheel an'glplnten; therewus ahnopigiinyaiahly a back lash" or-lostn otiori in the gear-connections whichaffected thervsnlts. Thcn again when iriclimml menus were employ ed toconnect the lizmspaeing wheeland platen considemhle power,v say thirteenpounds in some devices, .wun necessnryto maintain the connection andthis ,power nnst be overcome ingrvlcnsing the device. Even with thispower thefriction devices were unre linhlp as .the line spacing 'w -hcwlwas often accidentally displncotl relatively to tl eplntreri, when theline spacing leverfwas violentlj 21C(-l1 zLL(H l is, for instance, whenthe cnrriagewashcing restored .-,m;1 :t'line BPlLCil'lg movc ment(lithe-platen effected at n single operation. In devices which receiven-rotory nmIvement of "a linger wheel or-centrolling piegzetojefleet eneng genn -nt or disengagementbetween. the linespecing wheel and platen,2m accidentnlrotutydisplacement of the platen employinterlocking-teqtlpto mcnvbQtYgWXmthe110.9 pec en m lnn p nion th.-ofconsiderable-sizein nlq to specification oi Letters Potent;

I I Patented July 23,1901; 95,.minimisation otthe parts was beingeffecteclnnd often the displace: ment occurred without .the operator'sknowledge. Thus, if the platen happens to be adjusted to a point wherethe crowns of the teeth on both engaging morn hers come-into contact(luring the engagement of the ports, then the locking-0f the partsibgethefwill cause the phi ten to rotate until-t11e'.teeth are broughtinto Fprep er interlocking mesh and however plight the move ment of theplaten, .it is sufficient to throw the work out of alineruentnnd torender the wn'tten matter uneven and unsatisfactory From the foregoingit-will be un deistned that in prior devices where'positive orinterlocking means were employed to connect the line 'spiicing wheel andplaten, .the platen ceuldlnot be ad- .jus ted to any desired pointrelatively to the platen and 5 connected to the wheel at; the pointcindj l l s tment.

Thepbjeut o'f ny present invention is teeter-coinethe w boveandutherideiecl-sjthe-t h avebeen encountered heretofore in frnctienpLli-ne spacing mechanism and to piovide a fractional line spacing devicewhich will be efficient; in operation under all conditions ofits use,

To the above and-otherends which will liereinaiter appear, my inventionconsists of the features of con- Bi motion, arrangements o'fparts andcombinations of de vices to he hereinafter described and claimed.

In the accompanying glrnwinge,- wherein likemfeionce characters indicatecorresponding ports in the irzi- I rions'yieivs, Figure 1' is :tiletnilcontrol, longitudinal seetiminl view oI a phi-ten with-Any devices shownuppl'ied thereto. Fig. 2 is n 1 1ngmentairy View of the some with thepmzts i-illownnt i'ghtnnglanto theposition illustratudrin Fig.1; Eig .3is an end view looking towfird-sihe -line apaci ng w vhoel 01'- in thedirection of the arrow in Fg Z z ind niitlLthe finger wheel sectionedewa yh Fig. i-is' n cleteilporspective View of the-right 90 hand platenhcnd. -F ig. 5 'i a detail perspective view of one of,thqinterlockingengaging members. Fig. {5 is n gl z-iiail pets )egtiveyiewpithelinespacing wheel with i n ti nloelg ing enge-ging niemhers, comeeteil newThe cylindrical plat-en comprises the usunl sheath 1. and hollow core 2.The left-hand plnten head 3 is seplane'l ironi its adjusted positionwhile an'engngement cured to the'phtten by headed wood screws 4 whichplaten head 14 which is shown in-detail in Fig. 4. The platen head 14hnsa flange from which project pins 14 hus'n threaded neck 17 thatextends beyond the 'for turning the ring to secure it'in place on thethreaded the platen head and is held .agsin'st lbngitudinil'disicctsfrom thelinespa'ce wheel a locking lm'mher zfi having two ears 2'! thatare apertdred 'to receivs-threaded screws 28, the stems oi which arethreaded into heeded at 1.1 pussesthrough this opening and is repassthrough the platen head and take into the core oi the piston. Anoutwardiy-extending sleeve-like portion 5 is curried by the platen headand a spindle or stem 6 is received within the opening in said sleeve. Alinger. wheel 7 is connected to the outer end of the spindle whichprojects thlough'a hearing opening in the plutcn i'raine 8, whereas thespindle and platen head are united by n (.(JllOltllll pin 9 whichpnsses' thmugh openings in the sleeve-like portion 5 of the piston hoodand through the spindle 6. A central opening extends through the platenhood and a bolt 10 ccivcd at its inner threaded end in a nut 12,.theperipheral threads on which cetipornte with the internal threads on asleeve-like extension 13 of the right hand 16 that extend longitudinallyof the piston and areadupted to be seated in suitable holes in the endoi the platen core 2 as indicated in Fig. 2, 'thuspreventing the platenhead 14 from turning relatively to' the platen, whereas the bolt 10secures the platen head 14 against withdrawal from the platen. Acylindrical portion 15 on the platen head 14 is adapted to be seatedwithin the bore of the platen core 2 to forni a bearing for the platenhead and the parts carried thereby as shown in Fig. 2. The platen headflange 16 and into screwed onto it an internally threaded ring 18 whichis provided with spanner openings 19 extension-of the platen head. Thisring is-stcpped on its periphery to form shearing portion 2;) for theinner edge 21 (Fig. 0) of a line spacing wheel or ring 22, and'a flange230n the outer side of the line spacing-wheel or ring 22 fonpreventingmovement-of theline spacing wheel towards the right and longitudinallyof the platen. A peripheral bearing portion 24 is provided on the flange15 of the platenliead and the'inner bearing surface '25 of the linespacingu'hcol rests on said part 24 and .thc flange l5 prevents s.movement of the line spacing wheel to the left andlongitudinalliy of theplaten Thus, the line spacing wheel is mounted onplaceinont'thoughr'it'is' free to turn thereon for a limited distance,nswill hereinafter more clearly sp'pean- It shown in Figs/2 and 4, nlongitudinal-slot is formed in said piston head and said slot extendsfrom a point near the-inner end oi the tubular port 13 and through thecylinder 15fand flange 15, but'itdoesnot extend. into the threadedneck-17; Into this slot thm'e protapped openings the line 'spncing ringorwh'e'el to rigidly connect-the locking device to said wheel. Thislocking device hos inwardly pmjecting fingers 29 and 29 on oppositesides of the longitudinal nxis of the platen and those fiugeisnro bentslightly. to 'form' in-. clinod or wod'ging surfaces assiiidicated inFig. 2.

These fingers are bent in the some direction-that is to say; they aresubstantially pornllel. They both lie in dinaily oi the platen.'lhisgnide or carrier is shownin detail in Fig. 9 and comprises acylindrical portion 31 that is received in the tubnhtr extension andguides-- the carrier in its longitudinal movement therein. A flattenedcut away portion 32 on the carrier constitutes a. flat bearing surioceagainst which the inner flat hearing face 33 of n pivoted wedgin'gdevice 34 begins. This pivoted wedgingdevice (shown in detail in lfigl5) is pivotally connected to the carrier by a shouldered pivot screw 85,the thrca tdeii-stom oi 'ivhich is received in s. tapped opening .36 inthe carrier, so that the pivotal exisof the pivotal wedging deviceextendstrsns- .versely totho axis of the platen. The pivoted lockingdevice 34 'is preferably'madewi asingle piece of'shoet metnl struckupinto theiorinr indicstd in Fig. 5 with opposite flat iacesSH and 3'?and wedge-like or inclined portions 38 and 88 on opposite sides of itspivotal cen' ter. These inclined lanes 38 and 38 inc adnpted'tocooperate with theinjclined fingers 29 and 29" to effect e wedging andinterlocking engagement betweeii the p ivotcd locking member 34 and thelocking device 26 carried by the line spscing wheel to preventsrelativeturning movementof one independently of the other.

As has been observed, the tubular extension 13 on --the piston head-l4is slotted on opposite sides .t 39, end the locking member Stextendsthrougi. those slots in the tubjulai extension and theflst'boau'ingsurface 37 bears against the .edges oi wells of the slotsat oncside thereof, as shown in Fig. .2"; so that the locle ing memberend its cariier 30 sreprevented from turning relatively to the platenheofd lfl th'otigh2said locking member may receivea pivotal movement onits cnrrier around the pivot sc'rew 35 and may likewise receive abodily-movement with its earlier longitudiznnlly of the platen; The'bodily' movement of the carrier in' one direction is effected by moonsof a.

compression spring lO vh ich hears at one end against the nut 12 and isprevented frorn lateral displacement at that end by a projection 41 onthenut and at its opposite end the spring beers against the carrier 30and is prevented from lateral displacement st that end by it stud' 42which projects from the coirier and is received within the spring; Thecarrier is moved iri the opposite direction by a spindle 43 receivedwithin the hollow steni 44 for the finger wheel 45 'at the right handend oi the platen. The stcni 44 is seated within a sleeve-like extension46 of the thrcnded ncclg 7 that projects from the platen head 14nndzsaid sten is secured in ,place therein by s. set shrew 47, which isthreaded into'an opening in. the

entension 46 ,and bcnrs at its inner end ngainst the 'stem 44. A pin 48extends through the hollow stem "44 andpt its inner end is received ina. cut out portion 49 in the spindle 43, in order to limit the movementof the spindlo and prevent'th'e withdrawal thereof from the hollowstern. A finger picce'or button 50 is provided at the outer end of thespindle to facilitate an actuation there-oi. As the looking fingers 29and 29' are received within the slots 39 adjacent to the forces thecarrier 30 to the right, thus carrying the wedge-shaped locking device34 into interlocking engagement with the locking member 20, which isrigidly connected to the line-specing wheel, and the wedging notion willproduce a close fit and the device TH will positively lock the linespacing wheel to lU- into to the platen. The locking device 34 iii tliuewedged in between the arms and 29* on the one Hide and the wall ol theslot 39 in the pluteh head 14, on the other side. The. line space wheelbeing held by the detcnt roller 52, the platen iii positit-ely lockedngnii'lst. rotation relatively to said line space wheel toword the backoi the machine by the engagement of the wedge 33* with the inclinednri'n 29 and it in positively locked against rotation in ,the otherdirection by the eugngcment oi the wedge 38 with the arm 29. The platenis thus positively locked against rotation relatively tothe line spacewheel in either direction. In order to elloct n disengagement of thelocking members, tonfiord fractional line spacing, it is merelynecessnryto In we the spindle 43 to warde the left thereby moving the carrier 30against the tenison of its spring 40 when the wcdgin g d evicc. 34 hadbeen'cerried ut of engngmnent with its cooperating engaging memer '25"1rd the platen will be free to be rotated -indepondently oi the linespncing wheel a distance e'orre-.

.sponding substiuitinlly to the distance between two teeth 5i lithe linespacing wheel or until one of the ltlti wzllln of the slots 35) in theplaten hood are moved; into contact with one of the lingers29 and 29 onthe locking member 26, it being undcrbtood thntet this time the linespacing wheel is held ngninst rotation by U the usual dctent roller 52.When pressure is relcaned' on the finger piece the tension of the spring40 will move the cn-rricr l0 longitudimilly of the plot en to the rightand will ngitin move the wtdging device 34 into "i. different conditionsdeponding'upon the adjustinu-rlmzking and wedging engagement with thelingers 2 1m! 2!. During the engagement ol the locking members thepivoted locking device .i-iwill antomnb. icnlly adjust itseii around itspivot 35 to the adjust.- nn-nt effected between the line spacingwheelgirxl platen and between the two wedge-like locking mom-- hers. llns'ing the reiingngunient of the ports in the mount-r nlltl-L'tl thewedge-lilieportion 38 or 38 be ght into ooijpcrntlon with the lingers 29and 2 mcnt between the line :qm-eing wheel and platen. 1i, i'mninstnnee,the adjustment is such that the fingers 29 and 2!) are about centeredirnthe slots 39 as shown in Pig. 2, tin-n the inclined faces 38 and 38'will approach their cooperating members 29 and 29 simultaneously andwill lock the parts together without necessarily utter-ting a movementof the engaging member 34 nround its pivot 35. If, however, therelutive'adjuetme'nt bet-ween the line spacing wl icel und platen snr-hthat the lingers Qtlnnd 29 are near the side walls or the slow 39, asindicated in Fig. 1,, that. .rJlL' of the in elinod times, my, forinatimce, 38" will meet its cooperating finger 29 before the otherengaging surfaces 38 and 29 are brought into cobpemtionand the continualreengaging movements of the parts, by the sliding move-- ment ofthe'cztrrier 30, will merely-turn the engaging member 34 around itspivot 35 while it is at the sumo time receiving abodily movement withthe carrier 30 and when theother wedge-like surfaces 38 and 29 arebrought into engi gement, no further movement ,of the. carrier will beeffected and the patio will be positively and securely locked intheiradjusted positions without displacing or affecting the adjustmentprevioualy' provlded between the line, spncing wheel end ,platen; Whenthe pivoted locking member 34 is pressed inward by the operator, itsleit hand-edge engages a ring 54 which partially aun'ounde'the tube 13,android-ring limits the motion of the-parts in l-llttli direetionnndalso causes said member 34 to sit squarely across its tw n- In operatingthe device, the pletn is rotated by either of the-linger wheels 7 or 45ton position within a. line Space distance of the point wlier'e-it "indeired to I 35 print. The finger piece Si) is then pushed toftli e left,thus ielezising the line spacing wheel, and the frictional; spacing ofthe 'platenjis effectecllin order to'bringthe e.\ act point where the imrint ie'to be madezit 'the printing point or-line. I'r eeure on thefinger p'ieee ijsthen released-end the pluten willbe locked in positionto receive the imprint, in accordance with the-adjustment thus effected.

when 1 m n herein and tha ee dmptnyng'cmnn p to means lor." poeitiv.e lyColln qtlllg -tllel'llttdnpngirig .95

I wheel and platen" I mean to designate means Ior :rig-' ItQ-ryhdjustment between them and without effecting the. adjustment, as'dist ingui'hed ,l'i omdovieeii," for i ns'tanee, having engegingteeththatin ny liethrown into or out oi engagement, but in-which-anadjustment liner th'an the teeth employed-1o connect the clutchrii'i'ji- .1 10 here cannot be eftec'tedf fi f From the foregoingdescription it will-bo eeen thatI -I have provided simple and efficientclutch-mechanism for eonnectingthe platen-and line 'spaein'g'wheel"afnny poi-nt'in the relative adjust irient of the two und'thnt by:ictueting the-hnpd operated con trolling iiiebn'surelbk tive mgyementof the locking members towardiiand nwsry l'i'iim'eaeh other maylie-effected tobring'i beut '1 the connection or disconnection" betweenthe line apnee Wheel andiplat'en; .tlltttone'fofjtlie:wed'ge-lilcelocliing inembera is mounted to huve nbodily-reeiproeiiting movement and an independent pivotal movement; thatthe pivotal reciprocating movement of the pivotal member in handcontrolled, whereas lhe independent pivotal. movement of said memberisan automatic movement'whioh is effected during the engagement of thelocking members to automatically adjust the clutching means to therelative adjustment elfeeted between the line spacing wheel and platen;and that by' the pro- Vlfllt'l'l ofthe clutch mechanilm herein shown endde- 11 30 scribed I have overcome all of the disadvantages here toloreencountered iii-fractional .line spacing mchanism.

Broad or generic claims covering the construction herein shown anddescribed are made in my companion application Serial No. 281,406, filedOct. 5, 1905; the

claims in the present application being directed to that 'i'orm or'species of the invention which is disclosed hv'ccn the line spacingwheel and platen.

2. In a typowrltlng machine, the combination of a line spacing, wheel. aplaten adapted to turn independently thereof, means adapted to limit theextent of motion oi said platen relative to said line space wheel, andinterlockin clutching means for positively connecting the line; spaclagwhorl and platemsald clutching means including means for automaticallyadjusting the clutching mcansito the relative adiustmcnt hehvcen'theplaten and line spacing whccl.

3. la e typewriting machine, the combination of a line spacing wheel, aplaten adapted to turn independently of said-line spacincwllccl, aclutch member rigidly secured to one of said parts, and n sccondclutchmember pivoted to turn on an axis that extends transversely of the axisoi. the platen and connected tothe other of said parts and adaptcd torecaive in addition to its pivotal movement a bodily movement into andout of positive locking and \vcdging cnbngcnicnt with said firstmentioned clutch member.

4. in a typcwriilng machine, the combination 'of a line spacing wheel, aplaten ndapted'to turn independently or said linc spacing wheel, andinterlocking clutching means for positively connecting said platen andline spacing wheel, said clutching means comprising two clutch members,one rigidly attached tothe line spacing wheel and the other pivoted toturn on an axis that extends transversely of the axis or the platen andadapted to rccclveln addition to its pivotal movement, a'bodily movementinto and out of lntcl'locking and wcdging cngagcmcnt witli-its clutchmemhcr on the line space wheel. i

ii. In a typcwritlng machine, the combination of a line spacing ivliccl,n platen adapted to turn independently of said line spacing wheel, andinterlocking clutching means for positively connecting said platen andline spacing wheel, said clutching means comprising: two clutchmemliors, one rigidly attached to the line spacing wheel and the otherilxod to turn with the pinion but pivoted to turn on an axis thatextends transversely of the axis of the platen and adapted to receive anadditional bodily movement longitudinally oi the platen into and out ofinterlocking and wedging engagement with the clutch menrl'icnon the linespacing. wheel. l

6. in a typcwrlting machine, the combination of a line spacing wheel, aplaten adapted to turn independently of said linc spacing whcel,interlocking clutching means for prmitivoly connecting said platen andline spacing wheel, said clutching means comprising two clutch memhci's,one

scopesday of October, A. 1'). 1902?,

rigidly attached to the line spacing wheel and the other pivoted to turnon an axis that extends transversely ot the axis 01' the platen andadapted to receive in addition to its pivotal movement a bodily movementinto and out o! in tcrlockln and wedglng engagement withtbecoilperutini; clutch member on the line spacing wheel, a spring torforclag said clutch members into interlocking engagement, and a linger-ploco tor-forcing the clutch members out of clutching engagement;

7.-In a typciyritl'nz machine, the combination cl. a line spacing wheel,a platen adapted to turn independently of said lino spaclng wheel,interlocking clutching means for positively connecting said platen andline spacing wheel, said clutching means comprising two clutch members,onerlgldly attached to the line spacing wheel, a spring pressed carrierflxedagainst turningmovement relatively to the platen butmovahleiongiindlnall y thercot, the other clutch member belng pivoted to' saidcarrier to turn on an axis that extends transversely of the axis of theplaten to 'move with the carrier longitudinally of the platen, andwedcing faces between said clutch members. v

8. in h t'ypcwrltlng machine, the combination of a line spacing wheel, aplaten adapted to'turn independently 01 said, line spacing wheel,interlocking ciatchlngmeans' for positively connecting said platen andline spacing wheel, said clutching means comprising two clutch members,one

4 rigidly attached to the line spacing \vhcci, aspring pressed carrierilxcd against turning movement relatively to the platen but movablelongitudinally thereof, the other clutch member being pivoted to saidcarrier to turn on an axisthat extends transversely of the axis oi! theplaten and to receive a bodily movement therewith-longitudinally of theplaten, wcdgingfaces between said clutch" members, and a ilngcr piecefor controlling the bodily movement of the plv oted clutch memhcr,

1].,111 a ty-pc vriting machine, the combination of a line' spacingwheel, a platen adapted to turn independently at the line spacing wheel,two interlocking-clutch members for posltivcly'connectlng the linespacing wheel and platen, one of said clutch members being connected tothe platen and the other rigidly connected to the line spacing wheel andone of said clutch members being pivoted on an axis that extendstransversely of the axis ottho platen and hav lug wedge-like engagingfaces on'opposite'sldcs of the pivotal center thercoi, and means foreilecting a movement of one at the clutch members towards and away fromthe other and into and out of interlocking engagement.

10. in a typcvvriting machine, the combination of a line spacing when],a platen adapted to turn independently oi! the line spacing wheel, twointerlocking clutch members for positively connecting the linespacingwheel and platen,

one of said clutch members being connected to the platen and the otherrigidly connected to the line splicing wheel,

ARTHUR w. smrn. Witnesses:

1'). MI \i'unns,

M. I iiixNu-nnun.

piece for disengaging

